From 3e6acb17ccf2ccade6801586a955273ac78ef7bb Mon Sep 17 00:00:00 2001
From: azivner <adam.zivner@gmail.com>
Date: Sun, 26 Nov 2017 08:24:27 -0500
Subject: [PATCH] sync WS message is now kind of ping - if there's no ping from
 server we display error message

---
 public/javascripts/init.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/public/javascripts/init.js b/public/javascripts/init.js
index ceea8c2af..eeb896d52 100644
--- a/public/javascripts/init.js
+++ b/public/javascripts/init.js
@@ -152,6 +152,7 @@ ws.onmessage = function (event) {
     const message = JSON.parse(event.data);
 
     if (message.type === 'sync') {
+        lastPingTs = new Date().getTime();
         const data = message.data;
 
         if (data.notes_tree) {
@@ -169,4 +170,12 @@ ws.onmessage = function (event) {
         const changesToPushCountEl = $("#changesToPushCount");
         changesToPushCountEl.html(message.changesToPushCount);
     }
-};
\ No newline at end of file
+};
+
+let lastPingTs = new Date().getTime();
+
+setInterval(() => {
+    if (new Date().getTime() - lastPingTs > 5000) {
+        showError("No communication with server");
+    }
+}, 3000);
\ No newline at end of file